package com.sky.mapper;

import com.sky.entity.ShoppingCart;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Update;

import java.util.List;

@Mapper
public interface ShoppingCarMapper {

    /**
     * 动态查询是否存在该产品的购物车
     * @param shoppingCart
     * @return
     */
    List<ShoppingCart> selectWithDishAndCategory(ShoppingCart shoppingCart);

    /**
     * 产品存在，添加份数
     * @param shoppingCidart1
     */
    @Update("update shopping_cart set number = #{number} where id = #{id}")
    void update(ShoppingCart shoppingCidart1);

    /**
     * 插入新的购物车
     * @param shoppingCart
     */
    @Insert("insert into shopping_cart (name, image, user_id, dish_id, setmeal_id, dish_flavor, number,amount, create_time) " +
            "VALUES" +
            "(#{name},#{image},#{userId},#{dishId},#{setmealId},#{dishFlavor},#{number},#{amount},#{createTime}) ")
    void insert(ShoppingCart shoppingCart);

    /**
     * 清空购物车
     * @return
     */
    @Delete("delete from shopping_cart where user_id = #{currentId}")
    void deleteAll(Long currentId);

    /**
     * 减少购物车的份数
     * @return
     */
    void deleteOne(ShoppingCart shoppingCart1);

    /**
     * 批量插入购物车数据
     *
     * @param shoppingCartList
     */
    void insertBatch(List<ShoppingCart> shoppingCartList);
}
